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Is this nutrient burn or deficiency

  • Thread starter Thread starter Chrism
  • Start date Start date Jan 29, 2025
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Is this nutrient burn or deficiency

Chrism Jan 29, 2025 55 Replies 4,671 Views
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Chrism

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#1
Is this nutrient burn or a deficiency seems be getting worse by the day and has happened to every plant now both strains
 

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NairnM16

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#2
Thts a magnesium deficiency,

It starts at the bottom of the plant
Rust spots

The yellow ness is a calcium deficiency

A bit of cal mag in your feed should fix things

Keep an eye on older growth for progress in symptoms

Fairly common easy to fix I wouldn’t worry to much

Have a look at your nutes nd see if any contain cal/mag in them if not maybe supplement some every 3/4 feed
 
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Chrism

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#3
Heres rest
 

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NairnM16

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#4
Could also be u have cal mag in your feed but your ratio could be off
Or ph could be off

It’s good to add
Sylica first
Cal mag
Base nutes
Then any additional additives

If In coco ph to around 6/6.2
If soil around 6.5/7
If hydro 5.8/6.2
 
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Chrism

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#5
NairnM16 said:
Thts a magnesium deficiency,

It starts at the bottom of the plant
Rust spots

The yellow ness is a calcium deficiency

A bit of cal mag in your feed should fix things

Keep an eye on older growth for progress in symptoms

Fairly common easy to fix I wouldn’t worry to much

Have a look at your nutes nd see if any contain cal/mag in them if not maybe supplement some every 3/4 feed
Click to expand...
I'm using canna a and b and cannazym
 
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NairnM16

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#6
The plant seems a bit whilted almost looks hungry

I see some leafs are crowning I believe that’s potassium could be wrong I’ll go do some reaserch for you

But some Calmag nd your colour will come back to a nice green nd should stop the rust spots from continuing
 
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NairnM16

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#7
Chrism said:
I'm using canna a and b and cannazym
Click to expand...
I’ll go look into what’s in them nd the optimal ratio 2 mins
 
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Chrism

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#8
NairnM16 said:
I’ll go look into what’s in them nd the optimal ratio 2 mins
Click to expand...
Thanks mate feel like throwing them out and starting again haha
 
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ArtfulCodger

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#9
What's the media? Is it 100% coco, or are there amendments? What and how much have you fed? How often and how much are you watering?
 
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OldSchoolest

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#10
NairnM16 said:
Thts a magnesium deficiency,

It starts at the bottom of the plant
Rust spots

The yellow ness is a calcium deficiency

A bit of cal mag in your feed should fix things

Keep an eye on older growth for progress in symptoms

Fairly common easy to fix I wouldn’t worry to much

Have a look at your nutes nd see if any contain cal/mag in them if not maybe supplement some every 3/4 feed
Click to expand...
I second this

BUT

I’ve had young seedlings like these look light and start that brown stuff down low when they were just hungry in general OR needed more light believe it or not!!

Are you growing in soil or coco?
 
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NairnM16

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#11
Chrism said:
Thanks mate feel like throwing them out and starting again haha
Click to expand...
Nah your all good honestly


So canna a b has an npk of 4/5/3

Nd canyzim is just your enzymes there good for breaking down decaying roots nd tht nd turning it into food for the plant

It says u should also be using rhinozime or something
This is your vitamins
B1 / b2
Helps strengthen your roots nd build an immune system for your plants to help agains diseases nd tht

None of these have cal mag in them


Do you have a ppm pen?

Follow this chart for guidance but remember every plant is different

It says to mix for 10L but u can work out the math on tht

I’d recommend starting to mix them at half strength then increase till the ppm is at your desired range

I like 250 for seedlings/clones
400/550 early veg
800/1000 late veg
Then 1400 max peak flower thtll be when u add the pk 13/14

Hope this helps
 

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NairnM16

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#12
OldSchoolest said:
I second this

BUT

I’ve had young seedlings like these look light and start that brown stuff down low when they were just hungry in general OR needed more light believe it or not!!

Are you growing in soil or coco?
Click to expand...
I don’t deny they defo look hungry, if in coco I can garuntee it’s calmag
 
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Chrism

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#13
NairnM16 said:
I don’t deny they defo look hungry, if in coco I can garuntee it’s calmag
Click to expand...
Yeah growing in Coco and they seemed to look droopy since been growing them I thought I'd over watered them
 
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Chrism

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#14
ArtfulCodger said:
What's the media? Is it 100% coco, or are there amendments? What and how much have you fed? How often and how much are you watering?
Click to expand...
They was in 200 ml pots so was just watering till was all wet and then again when looked dry but they been moved to 4.8 litre pots so now been watering till runs out of bottom and been using canna Coco professional plus
 
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NairnM16

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#15
Chrism said:
Yeah growing in Coco and they seemed to look droopy since been growing them I thought I'd over watered them
Click to expand...
Fun fact about coco it’s hydrophobic
It doesn’t retain moisture
You should be feeding every feed
a plant tht size needs about 1L a day until a wee bit bigger then up it to 2L

The goal with coco is to not let of fully dry out unlike soil

The roots will grab whatever’s available in the water as it passes
 
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Chrism

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#16
ArtfulCodger said:
What's the media? Is it 100% coco, or are there amendments? What and how much have you fed? How often and how much are you watering?
Click to expand...
They was in 200 ml pots so was just watering till was all wet and then again when looked dry but they been moved to 4.8 litre pots so now been watering till runs out of bottom and yeah using canna Coco professional plus
NairnM16 said:
Fun fact about coco it’s hydrophobic
It doesn’t retain moisture
You should be feeding every feed
a plant tht size needs about 1L a day until a wee bit bigger then up it to 2L

The goal with coco is to not let of fully dry out unlike soil

The roots will grab whatever’s available in the water as it passes
Click to expand...
I haven't been feeding anywhere near a litre more like half of that I got green algae before transported them and I read that was from overwatering so was scared give them to much it's never felt dry tho
 
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NairnM16

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#17
For next feed give them around1L
3ml per L of a and b
2ml per l of your rhinozime
Nd maybe like 2/3 ml per l of cal mag at around 400/500 ppm

Repeat every day/2days/feed
Without the calmag add tht like every 3/4 feed should be fine as the get bigger nd bushier up the ppm to 800 if the plants look healthy don’t add calmag too much fucks with the chemicals or something in the plant I’ve not looked to much into it tbh so I don’t know but wish u all the best your plants look good
You’ll be amazed at how much torture a plant can take
 
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Chrism

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#18
NairnM16 said:
For next feed give them around1L
3ml per L of a and b
2ml per l of your rhinozime
Nd maybe like 2/3 ml per l of cal mag at around 400/500 ppm

Repeat every day/2days/feed
Without the calmag add tht like every 3/4 feed should be fine as the get bigger nd bushier up the ppm to 800 if the plants look healthy don’t add calmag too much fucks with the chemicals or something in the plant I’ve not looked to much into it tbh so I don’t know but wish u all the best your plants look good
You’ll be amazed at how much torture a plant can take
Click to expand...
I'm gunna probably sound daft now but I'm clueless haha once I mix that amount of nutrients with a litre of water won't my ppm be alot higher then 400/500 because I've been using less then that and ppm is always higher I've just been adding more water to lower it is that right? Because I'm starting to doubt it I've done anything right haha
 
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NairnM16

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#19
Chrism said:
I'm gunna probably sound daft now but I'm clueless haha once I mix that amount of nutrients with a litre of water won't my ppm be alot higher then 400/500 because I've been using less then that and ppm is always higher I've just been adding more water to lower it is that right? Because I'm starting to doubt it I've done anything right haha
Click to expand...
nah tht sounds about right hahah start off with about 1/4 1/2 what I recommend,

Adding more water is also an option but I found I was sitting with a lot of leftover water

Work out what you need to get you mixing res into optimal range nd make your own chart from there using the recommended as a guidence

I run advance nutes in hydro nd if I followed the bottles recommendations I’d cook my plants took a few cycles to dile in a good feed

A lot more room for error on coco u can always fix any issues almost immediately

Try not to worry about it to much end of the day there plants experiment a bit kill a few bring a few back from death nd it’ll all start to make sence you’ve got plenty more plants ahead of you try not to do to much at once nd you’ll be fine

I’d keep notes of what you fed when you fed so on humidity temp daily nd always reference back to see where things went right nd went wrong we all make mistakes it’s about how we learn from them
Your still new to this so I’d recommend just getting the environment nd the feed down nd everything else will fall into place
 
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Chrism

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#20
Thanks for your help mate
 
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Replies 55
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Started Jan 29, 2025
Latest post Feb 27, 2025
Starter Chrism
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